Infectious Disease Commons^™

Clinical And Laboratory Predictors Of 30-Day Mortality In Hiv-Positive Adults With Pneumonia: A Prospective Observational Study From North India, Mandip Singh Bhatia, Ankita Kumari Bhargav, Saurabh Chandrabhan Sharda, Shankar Naidu, M. R Shivaprakash, Sunil Sethi, Vikas Gautam, Arnab Ghosh

Journal of Community Hospital Internal Medicine Perspectives

Background: Pneumonia remains a major cause of morbidity and mortality among people living with HIV (PLHIV), particularly in low- and middle-income countries. Despite the availability of antiretroviral therapy (ART), early mortality after hospitalization for pneumonia remains high. Indian data on short-term mortality predictors in HIV-associated pneumonia are limited.

Methods: We conducted a prospective observational study of HIV-positive adults admitted with pneumonia to a tertiary-care hospital in North India between April and December 2025. Clinical, laboratory, microbiological, and radiological parameters were recorded at admission. Patients were followed for 30 days. The primary outcome was all-cause 30-day mortality. Predictors of …

Preparation Of Physician Assistant Students To Manage Patients Living With Hiv/Aids In A Primary Care Setting, Austin Parrish

SIU Journal of Medical Science Scholarly Works

This study examined Human Immunodeficiency Virus (HIV), Acquired Immunodeficiency Syndrome (AIDS), Pre-Exposure Prophylaxis (PrEP), and Post-Exposure Prophylaxis (PEP) educational exposure among clinical-phase physician assistant (PA) students and evaluated how well current curricula prepare future providers for HIV prevention and care. A cross-sectional survey of 109 PA students assessed HIV-related knowledge, clinical exposure, and awareness of key public health concepts, while lecture materials from 30 PA programs were analyzed for curricular content. Students demonstrated moderate but incomplete baseline knowledge, and fewer than one-quarter reported observing PrEP prescribing during primary care rotations. Awareness of Undetectable = Untransmittable (U=U) was limited, with only …

Countering Hpv Vaccine Misinformation On Social Media: Practical Strategies For Healthcare Providers, David Baldwin

Lynchburg Journal of Medical Science

Human papillomavirus (HPV) vaccination is a highly effective strategy for preventing cervical and other HPV-related cancers; however, vaccine hesitancy remains a significant barrier to optimal vaccination rates. Social media has become a major source of health information while simultaneously amplifying misinformation that influences parental attitudes toward HPV vaccination. This narrative literature review examined the relationship between social media misinformation and HPV vaccine hesitancy and identified evidence-based strategies healthcare providers can use to improve vaccine confidence.

A literature search of PubMed and Google Scholar identified 31 articles published between 2016 and 2025, of which 19 met inclusion criteria. The literature demonstrates …

Leveraging Administrative Health Data To Capture Rare Adverse Drug Reactions: Identifying Pediatric Patients With Trimethoprim-Sulfamethoxazole Acute Respiratory Distress Syndrome., Keith Feldman, Jenna Miller, Katherine Doane, Laura Loftis, James W. Antoon, Kevin J. Downes, Jennifer Goldman

Manuscripts, Articles, Book Chapters and Other Papers

Rare adverse drug reactions (ADRs) are underrecognized and underreported in the electronic medical record (EMR). These events often require clinical review, making systematic identification challenging. The study aim was to develop an approach to prioritize identification and validation of a rare ADR to trimethoprim-sulfamethoxazole causing acute respiratory distress syndrome (TMP-SMX ARDS) across medical institutions. We developed a clinical phenotype based on 2 local TMP-SMX ARDS cases mapped to standardized elements of a national comparative healthcare database (PHIS). We validated identification of TMP-SMX ARDS at scale across medical institutions. A set of scoring criteria was created to prioritize cases and generate …

Pneumococcal Colonization In Pediatric Patients Undergoing Hematopoietic Cell Transplantation., Liset Olarte, Jennifer E. Schuster, Ibrahim Ahmed, Kristina G. Hulten

Manuscripts, Articles, Book Chapters and Other Papers

Despite the increased risk of invasive pneumococcal disease among pediatric hematopoietic cell transplant (HCT) recipients, pneumococcal colonization has not been evaluated in this population. We prospectively assessed longitudinal pneumococcal colonization in 22 pediatric HCT recipients from conditioning therapy to 100 days post-HCT. A higher likelihood of pneumococcal colonization was observed in the late post-HCT period (weeks 9-14) compared with the early post-HCT period (weeks 1-8), with odds increasing with each additional week after conditioning.IMPORTANCEThis is the first study to longitudinally evaluate pneumococcal colonization in pediatric hematopoietic cell transplant (HCT) recipients from the onset of conditioning therapy to 100 days post-HCT. …

Assessing Hpv And Hpv Vaccine Awareness And Perception Amongst Undergraduate Students, Maura Hawkins

Honors Theses

Human Papillomavirus (HPV) is one of the most common sexually transmitted infections in the United States. Vaccination rates remain low among college-aged students despite an effective vaccine being available. This study investigates HPV and HPV vaccination-related knowledge, beliefs, and perceptions among undergraduate students to inform targeted intervention strategies. Participants included undergraduate students (n = 19) who attended one of three focus groups conducted in April 2025 at the University of South Alabama. Structured interview guides explored HPV knowledge, perceived risk and severity, attitudes towards vaccination, autonomy in health decision-making, trust in health information sources, and preferred educational strategies. Discussions were …

Exploring Pediatric Leprosy In An Endemic Area: Case Series Of Eight Patients In Indonesia, Gitalisa Andayani Adriono, Tri Rahayu, Sri Linuwih Sw Menaldi, Nelfidayani Nelfidayani, Retno Sulistyo Wardani, Kahlil Gibran, Malika Sabrina Yunifananda, Kartika Qonita Putri, Yunia Irawati

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Leprosy remains a significant public health concern in endemic regions such as Indonesia. Children are particularly vulnerable due to their naive immunity and close familial contacts. This study aims to report cases of pediatric leprosy in Lembata, Indonesia, focusing on clinical characteristics and associated risk factors.

Case Illustration: A case series of eight pediatric patients (<15 >years) diagnosed with leprosy was conducted during a community-based screening program in Lembata, Indonesia, in 2022. Of 140 individuals examined, 8 were children. Most patients were male (6/8) with a mean age of 11.75 years. Multibacillary (MB) leprosy predominated (7/8), and a history …

Ep 64 - Operation No Noro: A Multidisciplinary Approach To Containing A Norovirus Outbreak In An Inpatient Rehabilitation Unit, Donika Marko, Roula Hilli, Priscila Bercea, Pamela S. Bozigar, Levi Launder, Stephanie Robertson, Trini A. Mathew

Conference Presentation Abstracts

Norovirus is a highly contagious viral gastroenteritis and can rapidly spread in healthcare settings, particularly in congregate environments such as inpatient rehabilitation units. In March 2025, a cluster of acute gastrointestinal illness was identified on a 34-bed inpatient rehabilitation unit within a 150-bed acute care hospital. Eight patients developed: • Nausea • Vomiting • Diarrhea • Abdominal pain Due to shared spaces, communal therapy activities, and high patient interaction, rapid intervention was initiated to prevent further spread.

Isr 84 - Improving Documentation Accuracy Of Surgical Site Infection Prevention Bundles Using Implementation Science Frameworks, Laura Fraser, Lynn M. Sackett-Hodge, Michelle Schaeffer, Pamela S. Bozigar

Conference Presentation Abstracts

Accurate documentation of Surgical Site Infection (SSI) prevention bundle components is essential for quality improvement and patient safety. In National Healthcare Safety Network (NHSN)-reported colon (COLO) and hysterectomy (HYST) procedures, incomplete or inconsistent documentation undermines bundle fidelity and limits evaluation of outcomes. This initiative aims to determine whether embedding evidence-based interventions within implementation science frameworks improves documentation accuracy and ensures sustainability.

The Power Of Proximity: Driving Hand Hygiene Compliance Through Sanitizer Placement, Jennifer E. Jones, Eric Van Middendorp, Leanne Wendt

Posters

Hand hygiene is the cornerstone of infection prevention in healthcare settings and is particularly critical in the Neonatal Intensive Care Unit (NICU) where patients are highly vulnerable due to immature immune systems and frequent exposure to invasive procedures. Healthcare associated infections (HAIs) remain a significant cause of morbidity and mortality among neonates. Evidence consistently identifies proper hand hygiene as the single most effective intervention to reduce HAIs in NICUs. Despite its simplicity, compliance among healthcare workers is often suboptimal, influenced by factors such as workload and accessibility of hand hygiene resources.

Quality In Action: A Systematic Approach To Central Line Associated Bloodstream Infection Prevention, Jennifer E. Jones, Maggie Simons, Sherri Hoard, Gabriel Laney, Adam Nicholson, Victoria Springvloed, Tracy James, Erica Tuffs

Posters

Central line associated bloodstream infections (CLABSIs) are a major source of morbidity, mortality, and increased healthcare costs in hospitalized patients. Reducing CLABSI rates requires more than isolated interventions; it demands a coordinated, multi-disciplinary strategy that addresses clinical practice, workflow and organizational culture.

Proactive Strategies For Catheter-Associated Urinary Tract Infection (Cauti) Reduction: Leveraging Audit Tools And Interdisciplinary Collaboration, Mica Blauw

Posters

Catheter-associated urinary tract infections (CAUTIs) are a known cause of harm to patients. Policies enforcing infection prevention measures may help minimize the risk of harm to patients, but written policies do not always translate to bedside practice. We implemented a proactive daily audit to increase awareness of, and compliance with, CAUTI prevention tactics.

Code Wet: Navigating Water Leak Mitigation And Remediation Behind The Red Line, Mica Blauw

Posters

Water leaks in the hospital setting are concerning because of the possibility of mold growthon porous materials such asdrywallthatmaylead toinfections. Water leaksbehind the line of demarcation in the surgical services suiterequire extra care during the remediation processdue to the high-risk nature of surgical patients. We navigated water leakmitigation and remediation in a surgical suite while keeping surgical operations funning safely.

Hypertensive Disorders Of Pregnancy, Covid And Readmission Status, Margaret Luebke, Ross Bindler, Trisha Saul, Linda Trinh

Publications 2026-present

No abstract provided.

Optimizing The Sensitivity Of Detection Of Respiratory Syncytial Virus Infections In Longitudinal Studies Using The Combination Of Weekly Sample Testing And Biannual Serology., Shannon C. Conrey, Daniel C. Payne, Maria Deza Leon, Monica Epperson, Melissa M. Coughlin, Allison R. Burrell, Claire P. Mattison, Rachel M. Burke, Julia M. Baker, Natalie J. Thornburg, Meredith L. Mcmorrow, Mary Allen Staat, Ardythe L. Morrow

Manuscripts, Articles, Book Chapters and Other Papers

Cohort studies are often challenged by incomplete adherence to sampling regimens, limiting the full capture of disease burden. We describe the detection of respiratory syncytial virus (RSV) infections achieved in a birth cohort using a combination of weekly nasal sample testing and serology. The Pediatric Respiratory and Enteric Viral Acquisition and Immunogenesis Longitudinal Cohort followed 245 maternal-child dyads from birth to age 18 to 24 months. Weekly mid-turbinate nasal swabs were tested for RSV using real-time polymerase chain reaction (RT-qPCR). Serum was tested for RSV pre-fusion F IgG and IgA antibody at age 6 weeks and biannually from 6 to …

Nurses' Perspectives On Caring For Critically Ill Children During A Measles Outbreak: A Case Report, Nicole Roehrig

All Podium Presentations

No abstract provided.

Infection Prevention And Control Of Candida Auris In Pediatric Settings, Thomas S. Murray, Hana Hakim, Christelle Ilboudo, Lynn Ramírez-Ávila, Jana Shaw, Terri Stillwell, Patricia Budo, Bernard Ebruke, Noa Fleiss, Amanda Green, Matthew Linam, Roshni Mathew, April Mcdougal, Natalie Neu, Zoi Dorothea Pana, Karen Ravin, Ayelet Rosenthal, Jane D. Siegel, Katlyn Steimel, Amy Valencia, Carol Vance, Lars F. Westblade, Lisa Saiman

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Candida auris (also referred to as Candidozyma auris) is an emerging multidrug-resistant fungal pathogen associated with high morbidity and mortality. Existing infection prevention and control (IPC) guidance has largely focused on adult populations, with limited recommendations for pediatric healthcare and non-healthcare settings.

METHODS: The Society for Healthcare Epidemiology of America (SHEA) convened a multidisciplinary expert panel to develop IPC recommendations for C. auris. The panel developed recommendations using a structured, iterative Delphi consensus process with rounds of discussion, refinement, and anonymous electronic voting with predefined consensus thresholds. Panelists reviewed relevant peer-reviewed and gray literature integrated with expert …

Comparison Of Ecg Features, Cardiac Biomarkers, And Clinical Outcomes In Three Waves Of Hospitalized Covid-19 Pneumonia Patients With Cardiovascular Events, Yuchen Han, Jahnavi Sunkara, Tshura S Ali, Harideep Samanapally, Vidyulata Salunkhe, Fnu Deepti, Emma C. Huang, Justin J. Huang, Maiying Kong, Jiapeng Huang

The University of Louisville Journal of Respiratory Infections

Background

Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) is a rapidly evolving virus that can severely impact the cardiovascular system. With new variants, it is important to characterize wave-specific (defined by dominant circulating variants) clinical changes.

Methods

A multi-center retrospective cohort study of patients hospitalized with SARS-CoV-2 community acquired pneumonia at eight adult acute-care hospitals in the city of Louisville, KY was conducted. Patients hospitalized with Coronavirus Disease 2019 (COVID-19) community acquired pneumonia who experienced a cardiovascular event between March 2020 and July 2022 were included in this analysis. Variant assignment was based on temporal prevalence rather than genomic confirmation, and …

Validation Of A Real-Time Pcr Laboratory Developed Test For The Detection Of Pneumocystis Jirovecii In Bronchoalveolar Lavage Samples, Caitlyn Moon

Honors Scholar Theses

Pneumocystis jirovecii is an opportunistic, host-obligate fungal pathogen responsible for causing P. jirovecii pneumonia (PJP) in humans. PJP is treated with trimethoprim-sulfamethoxazole (TMP-SMX), a strong broad-spectrum antibiotic that carries risk of renal and hepatotoxicity. Therefore, rapid diagnosis or exclusion of PJP is crucial to ensure PJP-positive patients receive effective treatment and PJP-negative patients avoid unnecessary antibiotics. Unlike most microorganisms, P. jirovecii cannot be cultured, presenting complications for the typical methods of diagnosing fungal pathogens. Historically, the gold standard for diagnosis was direct microscopic examination with stains such as methenamine silver and calcofluor white, but this diagnostic technique requires highly skilled …

Late Hepatitis B Reactivation After Hsct And B-Cell Depleting Therapy: Case Vignettes Challenging Fixed-Duration Prophylaxis, Ariana Cho, Harrison Moses, Muaz Alchirazi, Vishakh Keri, Lea Monday

Conference Presentation Abstracts

Hepatitis B virus (HBV) reactivation remains a critical concern in immunosuppressed oncology and hematopoietic stem cell transplant (HSCT) patients, yet the optimal duration of antiviral prophylaxis is unresolved. Current guidelines recommend 12–18 months of prophylaxis after HSCT or B-cell depleting therapy for patients who are isolated anti-HBc positive, based on documented cases of late reactivation beyond the traditional 12-month threshold. However, these recommendations largely derive from studies in HBsAg-positive patients or those receiving rituximab-containing regimens, with limited data addressing the broader range of high-risk scenarios encountered in practice. We present two vignettes highlighting this gap. Patient 1 is a 60-year-old …

Clinical Characteristics, Antibiotic Resistance Trends, And Associated Molecular Epidemiology Traits In Escherichia Coli Isolates Producing Neonatal Bacteremia, Keerti Ivaturi, Christine Symes, Mina Farahbakhsh, Sanjula Bhuri, Joshua L Wheatley, Rangaraj Selvarangan, Daniel P. Heruth, Susana Chavez-Bueno

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Escherichia coli is a leading cause of neonatal sepsis. This study's objective was to investigate the clinical characteristics of newborns with E. coli bacteremia, and recent antibiotic resistance trends and molecular epidemiologic features of these invasive strains.

METHODS: Clinical data and blood E. coli isolates collected from 54 neonates with bacteremia were studied. E. coli antibiotic susceptibility trends over time, and whole-genome sequencing data relevant to the genomic relatedness and capsule genotype of the isolates were analyzed.

RESULTS: Thirty percent of bacteremic newborns were preterm. Mortality was 19% in preterm versus 5% in term infants. Cerebrospinal fluid was collected …

Natural Maternal Immunity Protects Neonates From Escherichia Coli Sepsis., Raymond E. Diep, Ujjwal Adhikari, Kubra Gokce Tezel, Giang Pham, Allison R. Burrell, Mary A. Staat, Nguyen Thi Khanh Nhu, Minh-Duy Phan, Kate M. Peters, Mark A. Schembri, Scott H. Saunders, David B. Haslam, John J. Erickson, Susana Chavez-Bueno, Sing Sing Way

Manuscripts, Articles, Book Chapters and Other Papers

Escherichia coli is a leading cause of neonatal sepsis, with infection occurring in approximately one in every 1,000 live births. However, with E. coli colonization beginning soon after birth and defects in neonatal host defence maturation, an alternative consideration is why infection does not occur even more frequently. Here we show that newborn babies with E. coli sepsis have selectively reduced vertically transferred natural antibodies that recognize E. coli, mechanistically explaining their susceptibility to infection. Complementary preclinical studies show that preconceptual intestinal colonization with probiotic E. coli Nissle 1917 (EcN) primes anti-E. coli immunoglobulin G (IgG) antibodies with broad cross-reactivity …

Optimizing Antibiotic Strategies With A Clinical Pathway Approach: Enhanced Initiation And De-Escalation In Community-Acquired Pneumonia, Ahmad Behzadpour

HCA Healthcare Journal of Medicine

Background

Community-acquired pneumonia (CAP) remains a leading cause of hospitalization, mortality, and health care expenditure worldwide. Inappropriate use of broad-spectrum antibiotics contributes to antimicrobial resistance, adverse drug events, and increased costs. Antibiotic stewardship and standardized clinical pathways are key strategies to improve prescribing practices.

Methods

This quality improvement (QI) initiative was conducted at a 240-bed tertiary care teaching hospital from January 2023 through January 2025. A CAP-specific digital clinical pathway was developed using Curbside Health® and integrated into the electronic health record (EHR), accessible through a structured order set to support real-time clinical decision-making. The intervention included provider education and …

Sepsis Transitional Care Management: A Phone Call To Reduce Readmission Health Inequity, Linh Tang Taylor, Md, Erica Leser, Ms, Alyssa Nelson, Michelle Schoepflin Sanders, Md

Books, Presentations, Posters, Etc.

Introduction: Sepsis accounts for 52% of hospital admissions in the United States and is the leading cause of death among hospitalized patients1 . However, disparity exists among sepsis survivors with race being reported as a determinant of recovery2 . Such disparity exists in Providence Oregon 8 hospitals: Providence Black patients have higher sepsis readmission rates than White (12.93% vs 11.65%). Using modified community-based participatory research, data analysis, and stakeholder interviews, we identified one potential root cause of the disparity: Black patients being readmitted are not receiving our system's Transitional Care Management (TCM) services. We aim to eliminate the Black/White sepsis …

Idiopathic Systemic Capillary Leak Syndrome With Shock And Compartment Syndrome Due To Influenza A, Jobe Ashby, Md, Katelyn Bobrowski, Do, Ryan Best, Md

Books, Presentations, Posters, Etc.

INTRODUCTION: Idiopathic systemic capillary leak syndrome (ISCLS) is a rare, poorly understood condition that leads to extreme pathology with severe but predictable complications. First described in 1960, ISCLS has been identified in about 260 case reports and is marked by a triad of hypotension, hypoalbuminemia, and hemoconcentration often preceded by upper respiratory tract infection. It is divided into distinct phases of prodrome, extravasation, and recovery. We present a case of a middle-aged woman who presented with influenza A infection and developed ISCLS needing ICU level care for shock and bilateral upper extremity compartment syndrome. DESCRIPTION: Our patient is a 49-year-old …

Ofatumumab Associated Legionella Pneumonia In A Young Multiple Sclerosis Patient, Jobe Ashby, Omar Panhair

Books, Presentations, Posters, Etc.

Ofatumumab is the only anti-CD20 IgG1κ human monoclonal antibody therapy for relapsing forms of multiple sclerosis (MS) that patients can self-administer subcutaneously. Anti-CD20 agents are biologic therapies that carry an increased risk of serious infections, but rarely Legionellosis. We present the case of a young man taking ofatumumab for his MS who developed Legionella pneumoniae pneumonia. A 30-year-old man with MS diagnosed two years prior, stable on ofatumumab, presented with fevers, cough, and hemoptysis. A week earlier, he developed fevers and myalgias after administering ofatumumab, but these symptoms persisted longer than usual. Though initial vital signs were normal, he appeared …

An Exploration Of Drivers Of Sepsis Outcomes In Racial And Ethnic Minority Populations, Matthew Moritz, Omar Pandhair, Shelley Schoepflin Sanders

Books, Presentations, Posters, Etc.

RATIONALE: Race and ethnicity affect sepsis outcomes in unclear ways. Existing data is conflicting, with some studies suggesting minority patients do worse, while others did not show a difference in outcomes between these groups. We sought to investigate whether inequalities exist in sepsis outcomes for different racial and ethnic groups in our large hospital system and to characterize how they may manifest. METHODS: We performed a retrospective cohort study of adults diagnosed with sepsis and discharged from any of Providence’s 52 hospitals between January 1 and December 31, 2023. We grouped patients into ten different race/ethnicity groups including White, Black, …

Closing The Gap: Standardizing Sepsis Management To Address Racial Disparities Across Oregon Providence Hospitals, Jennifer Wong, Do, Shelley Schoepflin Sanders, Md, Facp

Books, Presentations, Posters, Etc.

Introduction: Sepsis is a time-sensitive, life-threatening medical emergency affecting approximately 1.7 million adults annually in the United States, contributing to nearly 270,000 deaths and over $24 billion in healthcare expenditures. Delays in recognition and initiation of treatment can significantly increase mortality. Previous studies have identified persistent racial disparities in sepsis care, including lower rates of recognition as the principal diagnosis and delayed antibiotic initiation for Black patients compared with White patients. In alignment with Providence’s mission to provide compassionate, equitable care, Oregon Providence hospitals implemented a standardized “Sepsis Order Set” in all Emergency Departments (ED) to reduce treatment delays and …

Hydroxocobalamin In Septic Shock Management – Should It Be Introduced Sooner?, Linh Tang Taylor, Md, Cameron Miles Long, Md, Omar Pandhair

Books, Presentations, Posters, Etc.

Introduction: Treating sepsis involves timely antibiotics, adequate fluid resuscitation, and vasopressor support if shock develops. Plasma concentrations of nitric oxide and hydrogen sulfides are elevated in early sepsis, contributing to vasoplegia,1 a pathology that isn’t addressed by vasopressors. High-dose hydroxocobalamin (vitamin B12) does, and therefore, has long been explored as a potential adjunct to vasopressors, though no consensus or official guidelines for its use have been published. Case Report: A 26-year-old man who was diagnosed with acute myeloid leukemia a few months prior presented to the emergency room for fever, weakness, and emesis. He was found to be profoundly hypotensive …

Hydatid Cyst In The Right Ventricle Leading To Tricuspid Stenosis And Heart Failure: A Case Report, Muhammad Sheraz Hameed, Syed Rafay Hussain Zaidi, Shafaq Saleem, Muhammad Ahsan, Sarah Rahman, Azeen Razzaq, Ali Iqbal, Muhammad Sohaib Alvi, Muhammad Usama Naveed

Department of Medicine Faculty Papers

BACKGROUND: Cystic hydatid infection is a parasitic disease caused by the larval stages of Echinococcus granulosus, most commonly involving the liver and lungs. Cardiac involvement is rare, accounting for less than 2% of cases, with the left ventricle being the most commonly affected site. Involvement of the right ventricle is extremely uncommon and may lead to life-threatening complications such as tricuspid valve obstruction and hemodynamic compromise.

CASE PRESENTATION: We report a rare case of a 42-year-old patient who presented to the emergency department with exertional dyspnea, hemoptysis, chest pain, syncope, peripheral edema, and signs of right-sided heart failure. The patient …